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The Benefits of Metal-Free Dentistry
Many people don’t think twice about what their dental work is made of. We think they should.
Not all dental materials are created equal. Some, such as zirconia – a kind of ceramic – and certain composites, are broadly biocompatible. Others may contain problem components, such as fluoride and BPA in some composites, and mercury in so-called “silver” amalgam fillings.
With metal allergies becoming much more common in recent years – about 20% of the world population is now allergic to at least one metal – dental metals are of special concern. Many of those used most often in dentistry can potentially impact overall health. It’s not just about mercury.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9968405/
Concerns About Dental Metals
Metals have long been used in dentistry – for fillings and other restorations, partials and dentures, orthodontic brackets, implants, and more. They’re almost never pure metals but alloys, such as the mixture of mercury, silver, copper, tin, and zinc that make up the amalgam used for so-called “silver” fillings. This is done to create materials that are stronger, more durable, and better suited for specific dental uses.
They just may not be necessarily a good influence on your overall health and well-being.
Beyond mercury, three common dental metals pose special concern: nickel, chromium, and aluminum. All three are toxic and have the potential to cause problems ranging from allergic reactions to more serious health issues. Some people may experience sensitivities that manifest as inflammation, discomfort, or even chronic health conditions. Even small amounts of these metals can trigger reactions.
Oral galvanism is another concern. This occurs when different metals in the mouth interact with saliva, creating small electrical currents. While this might sound harmless, it can lead to significant issues. In the mouth, it can cause a metallic or salty taste, burning sensations, increased sensitivity, and pain. Some patients experience ulcers, inflammation, and even precancerous lesions in the oral tissues.
Beyond the mouth, oral galvanism has been linked with headaches, insomnia, vertigo, and problems with concentration and memory. In some cases, it may affect the nervous system, leading to symptoms like muscle twitching, weakness, and tremors. There have also been reports of impacts on the immune system and kidney function.
Metal-Free Alternatives in Dentistry
Fortunately, modern dentistry offers many excellent metal-free alternatives, such as zirconia. This strong, biocompatible ceramic material can be used to make inlays, onlays, crowns, implants, and more. Not only is it durable; it matches the color of natural teeth, providing better looking results.
For fillings, fluoride-free, BPA-free composite resins offer a safe and attractive alternative to metal amalgams. These modern materials may perform even better than amalgam, as well. One recent study comparing the two found that the failure rate was actually higher for amalgams: 17.49% to 11.98%.
https://www.mdpi.com/2306-5354/11/6/579
This study, based on big data, indicates that composite restorations have a lower replacement rate than amalgams, and there is now strong evidence to end the long-standing debate on the longevity of amalgam and composite materials. Hence, we can strongly support the Minamata recommendations for the use of composite resin materials only.
One thing that helps metal-free materials perform so well is that they help us retain more natural tissue – whether that’s the bony ridge into which implants are placed (more bone is preserved with ceramic implants) or natural tooth structure (less needs to be cut away to support the restoration). The result is stronger, more stable and durable dental work.
So even though a metal-free restoration or implant may cost more up front, it’s the more cost-effective option in the long run.
A Holistic, Biological Approach to Dental Care
At our practice, we take a comprehensive approach to your dental care. We consider not just your oral health, but how your dental work might impact your overall well-being. By opting for metal-free dentistry, you’re making a choice that aligns with a holistic view of health – one that recognizes the interconnectedness of your mouth and body.
If you’re concerned about metal in your existing dental work, or if you’re planning future treatments, we encourage you to explore metal-free options. We’re here to listen and discuss your concerns, explain the alternatives, and help you make a truly informed decision about your dental care
